<!DOCTYPE html><html lang="zh-Hans"><head><meta charset="utf-8"><title>Angular - Angular 编译器选项</title><meta name="Description" content="Angular is a platform for building mobile and desktop web applications.
    Join the community of millions of developers who build compelling user interfaces with Angular."><base href="/"><meta name="viewport" content="width=device-width,initial-scale=1"><link rel="search" type="application/opensearchdescription+xml" href="assets/opensearch.xml"><link rel="icon" type="image/x-icon" href="assets/images/favicons/favicon.ico"><link rel="icon" type="image/png" href="assets/images/favicons/favicon-32x32.png" sizes="32x32"><link rel="icon" type="image/png" href="assets/images/favicons/favicon-194x194.png" sizes="194x194"><link rel="icon" type="image/png" href="assets/images/favicons/favicon-96x96.png" sizes="96x96"><link rel="icon" type="image/png" href="assets/images/favicons/favicon-16x16.png" sizes="16x16"><link rel="apple-touch-icon" sizes="144x144" href="assets/images/favicons/favicon-144x144.png"><link rel="apple-touch-icon-precomposed" sizes="144x144" href="assets/images/favicons/favicon-144x144.png"><link href="assets/fonts/Material_Icons.css" rel="stylesheet"><link href="assets/fonts/Droid_Sans_Mono.css" rel="stylesheet"><link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"><link rel="manifest" href="pwa-manifest.json"><meta name="theme-color" content="#1976d2"><meta name="apple-mobile-web-app-capable" content="yes"><meta name="apple-mobile-web-app-status-bar-style" content="translucent"><script async="" src="assets/js/analytics.js"></script><script>!function(e,a,n,t,s,c,g){e.GoogleAnalyticsObject=s,e.ga=e.ga||function(){(e.ga.q=e.ga.q||[]).push(arguments)},e.ga.l=1*new Date,c=a.createElement(n),g=a.getElementsByTagName(n)[0],c.async=1,c.src="assets/js/analytics.js",~e.name.indexOf("NG_DEFER_BOOTSTRAP")||g.parentNode.insertBefore(c,g)}(window,document,"script",0,"ga")</script><script>window.onerror=function(){ga("send","exception",{exDescription:function(e,r,n,a,c){var l;e=e.replace(/^Error: /,""),l=c?c.stack.replace(/^Error: /,"").replace(e+"\n","").replace(/^ +/gm,"").replace(/^at /gm,"").replace(/(?: \(|@)http.+\/([^/)]+)\)?(?:\n|$)/gm,"@$1\n").replace(/ *\(eval code(:\d+:\d+)\)(?:\n|$)/gm,"@???$1\n"):r+":"+(n=n||"?")+":"+(a=a||"?");return(e+"\n"+l).substr(0,150)}.apply(null,arguments),exFatal:!0})}</script><link rel="stylesheet" href="styles.4adbe52ad34df01b5273.css"><style>.cdk-high-contrast-active .mat-toolbar{outline:solid 1px}.mat-toolbar-row,.mat-toolbar-single-row{display:flex;box-sizing:border-box;padding:0 16px;width:100%;flex-direction:row;align-items:center;white-space:nowrap}.mat-toolbar-multiple-rows{display:flex;box-sizing:border-box;flex-direction:column;width:100%}.mat-toolbar-multiple-rows{min-height:64px}.mat-toolbar-row,.mat-toolbar-single-row{height:64px}@media(max-width:599px){.mat-toolbar-multiple-rows{min-height:56px}.mat-toolbar-row,.mat-toolbar-single-row{height:56px}}</style><style>.mat-icon{background-repeat:no-repeat;display:inline-block;fill:currentColor;height:24px;width:24px}.mat-icon.mat-icon-inline{font-size:inherit;height:inherit;line-height:inherit;width:inherit}[dir=rtl] .mat-icon-rtl-mirror{transform:scale(-1,1)}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon{display:block}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon-button .mat-icon,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon-button .mat-icon{margin:auto}</style><style>.mat-button .mat-button-focus-overlay,.mat-icon-button .mat-button-focus-overlay{opacity:0}.mat-button:hover .mat-button-focus-overlay,.mat-stroked-button:hover .mat-button-focus-overlay{opacity:.04}@media(hover:none){.mat-button:hover .mat-button-focus-overlay,.mat-stroked-button:hover .mat-button-focus-overlay{opacity:0}}.mat-button,.mat-flat-button,.mat-icon-button,.mat-stroked-button{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:0;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible}.mat-button::-moz-focus-inner,.mat-flat-button::-moz-focus-inner,.mat-icon-button::-moz-focus-inner,.mat-stroked-button::-moz-focus-inner{border:0}.mat-button[disabled],.mat-flat-button[disabled],.mat-icon-button[disabled],.mat-stroked-button[disabled]{cursor:default}.mat-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-button.cdk-program-focused .mat-button-focus-overlay,.mat-flat-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-flat-button.cdk-program-focused .mat-button-focus-overlay,.mat-icon-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-icon-button.cdk-program-focused .mat-button-focus-overlay,.mat-stroked-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-stroked-button.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-button::-moz-focus-inner,.mat-flat-button::-moz-focus-inner,.mat-icon-button::-moz-focus-inner,.mat-stroked-button::-moz-focus-inner{border:0}.mat-raised-button{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:0;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0,0,0);transition:background .4s cubic-bezier(.25,.8,.25,1),box-shadow 280ms cubic-bezier(.4,0,.2,1)}.mat-raised-button::-moz-focus-inner{border:0}.mat-raised-button[disabled]{cursor:default}.mat-raised-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-raised-button.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-raised-button::-moz-focus-inner{border:0}._mat-animation-noopable.mat-raised-button{transition:none;animation:none}.mat-stroked-button{border:1px solid currentColor;padding:0 15px;line-height:34px}.mat-stroked-button .mat-button-focus-overlay,.mat-stroked-button .mat-button-ripple.mat-ripple{top:-1px;left:-1px;right:-1px;bottom:-1px}.mat-fab{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:0;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0,0,0);transition:background .4s cubic-bezier(.25,.8,.25,1),box-shadow 280ms cubic-bezier(.4,0,.2,1);min-width:0;border-radius:50%;width:56px;height:56px;padding:0;flex-shrink:0}.mat-fab::-moz-focus-inner{border:0}.mat-fab[disabled]{cursor:default}.mat-fab.cdk-keyboard-focused .mat-button-focus-overlay,.mat-fab.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-fab::-moz-focus-inner{border:0}._mat-animation-noopable.mat-fab{transition:none;animation:none}.mat-fab .mat-button-wrapper{padding:16px 0;display:inline-block;line-height:24px}.mat-mini-fab{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:0;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0,0,0);transition:background .4s cubic-bezier(.25,.8,.25,1),box-shadow 280ms cubic-bezier(.4,0,.2,1);min-width:0;border-radius:50%;width:40px;height:40px;padding:0;flex-shrink:0}.mat-mini-fab::-moz-focus-inner{border:0}.mat-mini-fab[disabled]{cursor:default}.mat-mini-fab.cdk-keyboard-focused .mat-button-focus-overlay,.mat-mini-fab.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-mini-fab::-moz-focus-inner{border:0}._mat-animation-noopable.mat-mini-fab{transition:none;animation:none}.mat-mini-fab .mat-button-wrapper{padding:8px 0;display:inline-block;line-height:24px}.mat-icon-button{padding:0;min-width:0;width:40px;height:40px;flex-shrink:0;line-height:40px;border-radius:50%}.mat-icon-button .mat-icon,.mat-icon-button i{line-height:24px}.mat-button-focus-overlay,.mat-button-ripple.mat-ripple{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none;border-radius:inherit}.mat-button-ripple.mat-ripple:not(:empty){transform:translateZ(0)}.mat-button-focus-overlay{opacity:0;transition:opacity .2s cubic-bezier(.35,0,.25,1),background-color .2s cubic-bezier(.35,0,.25,1)}._mat-animation-noopable .mat-button-focus-overlay{transition:none}.cdk-high-contrast-active .mat-button-focus-overlay{background-color:#fff}.cdk-high-contrast-black-on-white .mat-button-focus-overlay{background-color:#000}.mat-button-ripple-round{border-radius:50%;z-index:1}.mat-button .mat-button-wrapper>*,.mat-fab .mat-button-wrapper>*,.mat-flat-button .mat-button-wrapper>*,.mat-icon-button .mat-button-wrapper>*,.mat-mini-fab .mat-button-wrapper>*,.mat-raised-button .mat-button-wrapper>*,.mat-stroked-button .mat-button-wrapper>*{vertical-align:middle}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon-button,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon-button{display:block;font-size:inherit;width:2.5em;height:2.5em}.cdk-high-contrast-active .mat-button,.cdk-high-contrast-active .mat-fab,.cdk-high-contrast-active .mat-flat-button,.cdk-high-contrast-active .mat-icon-button,.cdk-high-contrast-active .mat-mini-fab,.cdk-high-contrast-active .mat-raised-button{outline:solid 1px}</style><style>.mat-drawer-container{position:relative;z-index:1;box-sizing:border-box;-webkit-overflow-scrolling:touch;display:block;overflow:hidden}.mat-drawer-container[fullscreen]{top:0;left:0;right:0;bottom:0;position:absolute}.mat-drawer-container[fullscreen].mat-drawer-container-has-open{overflow:hidden}.mat-drawer-container.mat-drawer-container-explicit-backdrop .mat-drawer-side{z-index:3}.mat-drawer-container.ng-animate-disabled .mat-drawer-backdrop,.mat-drawer-container.ng-animate-disabled .mat-drawer-content,.ng-animate-disabled .mat-drawer-container .mat-drawer-backdrop,.ng-animate-disabled .mat-drawer-container .mat-drawer-content{transition:none}.mat-drawer-backdrop{top:0;left:0;right:0;bottom:0;position:absolute;display:block;z-index:3;visibility:hidden}.mat-drawer-backdrop.mat-drawer-shown{visibility:visible}.mat-drawer-transition .mat-drawer-backdrop{transition-duration:.4s;transition-timing-function:cubic-bezier(.25,.8,.25,1);transition-property:background-color,visibility}.cdk-high-contrast-active .mat-drawer-backdrop{opacity:.5}.mat-drawer-content{position:relative;z-index:1;display:block;height:100%;overflow:auto}.mat-drawer-transition .mat-drawer-content{transition-duration:.4s;transition-timing-function:cubic-bezier(.25,.8,.25,1);transition-property:transform,margin-left,margin-right}.mat-drawer{position:relative;z-index:4;display:block;position:absolute;top:0;bottom:0;z-index:3;outline:0;box-sizing:border-box;overflow-y:auto;transform:translate3d(-100%,0,0)}.cdk-high-contrast-active .mat-drawer,.cdk-high-contrast-active [dir=rtl] .mat-drawer.mat-drawer-end{border-right:solid 1px currentColor}.cdk-high-contrast-active .mat-drawer.mat-drawer-end,.cdk-high-contrast-active [dir=rtl] .mat-drawer{border-left:solid 1px currentColor;border-right:none}.mat-drawer.mat-drawer-side{z-index:2}.mat-drawer.mat-drawer-end{right:0;transform:translate3d(100%,0,0)}[dir=rtl] .mat-drawer{transform:translate3d(100%,0,0)}[dir=rtl] .mat-drawer.mat-drawer-end{left:0;right:auto;transform:translate3d(-100%,0,0)}.mat-drawer-inner-container{width:100%;height:100%;overflow:auto;-webkit-overflow-scrolling:touch}.mat-sidenav-fixed{position:fixed}</style><style>.nav-link.highlight[_ngcontent-ng-docs-c30]{color:#ff0}</style><script charset="utf-8" src="toc-toc-module-es2015.f8531f591ee147aebcc6.js"></script><script charset="utf-8" src="default~code-code-example-module~code-code-tabs-module-es2015.9efcc76d2979a2e605e0.js"></script><script charset="utf-8" src="code-code-example-module-es2015.fa05e6f700453813d256.js"></script><style>.mat-progress-bar{display:block;height:4px;overflow:hidden;position:relative;transition:opacity 250ms linear;width:100%}._mat-animation-noopable.mat-progress-bar{transition:none;animation:none}.mat-progress-bar .mat-progress-bar-element,.mat-progress-bar .mat-progress-bar-fill::after{height:100%;position:absolute;width:100%}.mat-progress-bar .mat-progress-bar-background{width:calc(100% + 10px)}.cdk-high-contrast-active .mat-progress-bar .mat-progress-bar-background{display:none}.mat-progress-bar .mat-progress-bar-buffer{transform-origin:top left;transition:transform 250ms ease}.cdk-high-contrast-active .mat-progress-bar .mat-progress-bar-buffer{border-top:solid 5px;opacity:.5}.mat-progress-bar .mat-progress-bar-secondary{display:none}.mat-progress-bar .mat-progress-bar-fill{animation:none;transform-origin:top left;transition:transform 250ms ease}.cdk-high-contrast-active .mat-progress-bar .mat-progress-bar-fill{border-top:solid 4px}.mat-progress-bar .mat-progress-bar-fill::after{animation:none;content:"";display:inline-block;left:0}.mat-progress-bar[dir=rtl],[dir=rtl] .mat-progress-bar{transform:rotateY(180deg)}.mat-progress-bar[mode=query]{transform:rotateZ(180deg)}.mat-progress-bar[mode=query][dir=rtl],[dir=rtl] .mat-progress-bar[mode=query]{transform:rotateZ(180deg) rotateY(180deg)}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-fill,.mat-progress-bar[mode=query] .mat-progress-bar-fill{transition:none}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-primary,.mat-progress-bar[mode=query] .mat-progress-bar-primary{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-primary-indeterminate-translate 2s infinite linear;left:-145.166611%}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-primary.mat-progress-bar-fill::after,.mat-progress-bar[mode=query] .mat-progress-bar-primary.mat-progress-bar-fill::after{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-primary-indeterminate-scale 2s infinite linear}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-secondary,.mat-progress-bar[mode=query] .mat-progress-bar-secondary{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-secondary-indeterminate-translate 2s infinite linear;left:-54.888891%;display:block}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-secondary.mat-progress-bar-fill::after,.mat-progress-bar[mode=query] .mat-progress-bar-secondary.mat-progress-bar-fill::after{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-secondary-indeterminate-scale 2s infinite linear}.mat-progress-bar[mode=buffer] .mat-progress-bar-background{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-background-scroll 250ms infinite linear;display:block}.mat-progress-bar._mat-animation-noopable .mat-progress-bar-background,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-buffer,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-fill,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-fill::after,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-primary,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-primary.mat-progress-bar-fill::after,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-secondary,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-secondary.mat-progress-bar-fill::after{animation:none;transition:none}@keyframes mat-progress-bar-primary-indeterminate-translate{0%{transform:translateX(0)}20%{animation-timing-function:cubic-bezier(.5,0,.701732,.495819);transform:translateX(0)}59.15%{animation-timing-function:cubic-bezier(.302435,.381352,.55,.956352);transform:translateX(83.67142%)}100%{transform:translateX(200.611057%)}}@keyframes mat-progress-bar-primary-indeterminate-scale{0%{transform:scaleX(.08)}36.65%{animation-timing-function:cubic-bezier(.334731,.12482,.785844,1);transform:scaleX(.08)}69.15%{animation-timing-function:cubic-bezier(.06,.11,.6,1);transform:scaleX(.661479)}100%{transform:scaleX(.08)}}@keyframes mat-progress-bar-secondary-indeterminate-translate{0%{animation-timing-function:cubic-bezier(.15,0,.515058,.409685);transform:translateX(0)}25%{animation-timing-function:cubic-bezier(.31033,.284058,.8,.733712);transform:translateX(37.651913%)}48.35%{animation-timing-function:cubic-bezier(.4,.627035,.6,.902026);transform:translateX(84.386165%)}100%{transform:translateX(160.277782%)}}@keyframes mat-progress-bar-secondary-indeterminate-scale{0%{animation-timing-function:cubic-bezier(.15,0,.515058,.409685);transform:scaleX(.08)}19.15%{animation-timing-function:cubic-bezier(.31033,.284058,.8,.733712);transform:scaleX(.457104)}44.15%{animation-timing-function:cubic-bezier(.4,.627035,.6,.902026);transform:scaleX(.72796)}100%{transform:scaleX(.08)}}@keyframes mat-progress-bar-background-scroll{to{transform:translateX(-8px)}}</style><script charset="utf-8" src="assets-js-prettify-js-es2015.ba856648f2dd2d930a9b.js"></script></head><body><aio-shell ng-version="9.0.0-rc.11" class="aio-notification-hide folder-guide mode-stable page-guide-angular-compiler-options sidenav-open view-SideNav"><div id="top-of-page"></div><mat-toolbar color="primary" class="mat-toolbar app-toolbar no-print mat-primary mat-toolbar-multiple-rows"><mat-toolbar-row class="mat-toolbar-row notification-container"><aio-notification notificationid="survey-february-2019" expirationdate="2019-03-01" class="ng-tns-c22-0 ng-trigger ng-trigger-hideAnimation" style="height:0"><span class="content ng-tns-c22-0"><a href="http://bit.ly/angular-survey-2019" target="_blank" class="ng-tns-c22-0"><mat-icon role="img" svgicon="insert_comment" aria-label="Announcement" class="mat-icon notranslate icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M20 2H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h14l4 4V4c0-1.1-.9-2-2-2zm-2 12H6v-2h12v2zm0-3H6V9h12v2zm0-3H6V6h12v2z"></path><path d="M0 0h24v24H0z" fill="none"></path></svg></mat-icon><span class="message"><b>填写这份《一分钟调查》</b>，帮我们（开发组）做得更好！</span><span class="action-button">去填写</span></a></span><button mat-icon-button="" aria-label="Close" class="close-button ng-tns-c22-0 mat-icon-button mat-button-base"><span class="mat-button-wrapper"><mat-icon role="img" svgicon="close" aria-label="Dismiss notification" class="mat-icon notranslate mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z"></path><path d="M0 0h24v24H0z" fill="none"></path></svg></mat-icon></span><div matripple="" class="mat-ripple mat-button-ripple mat-button-ripple-round"></div><div class="mat-button-focus-overlay"></div></button></aio-notification></mat-toolbar-row><mat-toolbar-row class="mat-toolbar-row"><button mat-button="" title="Docs menu" class="hamburger mat-button mat-button-base"><span class="mat-button-wrapper"><mat-icon role="img" svgicon="menu" class="mat-icon notranslate mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M3 18h18v-2H3v2zm0-5h18v-2H3v2zm0-7v2h18V6H3z"></path></svg></mat-icon></span><div matripple="" class="mat-ripple mat-button-ripple"></div><div class="mat-button-focus-overlay"></div></button><a href="/" class="nav-link home"><img src="assets/images/logos/angular/logo-nav@2x.png" width="150" height="40" title="Home" alt="Home" class="ng-star-inserted"></a><aio-top-menu _nghost-ng-docs-c30="" class="ng-star-inserted"><ul _ngcontent-ng-docs-c30="" role="navigation"><li _ngcontent-ng-docs-c30="" class="ng-star-inserted"><a _ngcontent-ng-docs-c30="" class="nav-link" href="features" title="特性"><span _ngcontent-ng-docs-c30="" class="nav-link-inner">特性</span></a></li><li _ngcontent-ng-docs-c30="" class="ng-star-inserted"><a _ngcontent-ng-docs-c30="" class="nav-link" href="docs" title="文档"><span _ngcontent-ng-docs-c30="" class="nav-link-inner">文档</span></a></li><li _ngcontent-ng-docs-c30="" class="ng-star-inserted"><a _ngcontent-ng-docs-c30="" class="nav-link" href="resources" title="资源"><span _ngcontent-ng-docs-c30="" class="nav-link-inner">资源</span></a></li><li _ngcontent-ng-docs-c30="" class="ng-star-inserted"><a _ngcontent-ng-docs-c30="" class="nav-link" href="events" title="会议"><span _ngcontent-ng-docs-c30="" class="nav-link-inner">会议</span></a></li><li _ngcontent-ng-docs-c30="" class="ng-star-inserted"><a _ngcontent-ng-docs-c30="" class="nav-link" href="https://blog.angular.io/" title="博客"><span _ngcontent-ng-docs-c30="" class="nav-link-inner">博客</span></a></li><li _ngcontent-ng-docs-c30="" class="ng-star-inserted"><a _ngcontent-ng-docs-c30="" class="nav-link" href="translations/cn/home" title="关于中文版"><span _ngcontent-ng-docs-c30="" class="nav-link-inner">关于中文版</span></a></li></ul></aio-top-menu><aio-search-box class="search-container"><input type="search" aria-label="search" placeholder="搜索"></aio-search-box><div class="toolbar-external-icons-container"><a href="https://twitter.com/angular" title="Twitter" aria-label="Angular on twitter"><mat-icon role="img" svgicon="logos:twitter" class="mat-icon notranslate mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 50 59" xmlns="http://www.w3.org/2000/svg"><path d="M50,9.3c-1.8,0.8-3.8,1.4-5.9,1.6c2.1-1.3,3.7-3.3,4.5-5.7c-2,1.2-4.2,2-6.5,2.5c-1.9-2-4.5-3.2-7.5-3.2c-5.7,0-10.3,4.6-10.3,10.3c0,0.8,0.1,1.6,0.3,2.3C16.1,16.7,8.5,12.6,3.5,6.4c-0.9,1.5-1.4,3.3-1.4,5.2c0,3.6,1.8,6.7,4.6,8.5C5,20,3.4,19.6,2,18.8c0,0,0,0.1,0,0.1c0,5,3.5,9.1,8.2,10.1c-0.9,0.2-1.8,0.4-2.7,0.4c-0.7,0-1.3-0.1-1.9-0.2c1.3,4.1,5.1,7,9.6,7.1c-3.5,2.8-7.9,4.4-12.7,4.4c-0.8,0-1.6,0-2.4-0.1c4.5,2.9,9.9,4.6,15.7,4.6c18.9,0,29.2-15.6,29.2-29.2c0-0.4,0-0.9,0-1.3C46.9,13.2,48.6,11.4,50,9.3z"></path></svg></mat-icon></a><a href="https://github.com/angular/angular" title="GitHub" aria-label="Angular on github"><mat-icon role="img" svgicon="logos:github" class="mat-icon notranslate mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 51.8 50.4" xmlns="http://www.w3.org/2000/svg"><path d="M25.9,0.2C11.8,0.2,0.3,11.7,0.3,25.8c0,11.3,7.3,20.9,17.5,24.3c1.3,0.2,1.7-0.6,1.7-1.2c0-0.6,0-2.6,0-4.8c-7.1,1.5-8.6-3-8.6-3c-1.2-3-2.8-3.7-2.8-3.7c-2.3-1.6,0.2-1.6,0.2-1.6c2.6,0.2,3.9,2.6,3.9,2.6c2.3,3.9,6,2.8,7.5,2.1c0.2-1.7,0.9-2.8,1.6-3.4c-5.7-0.6-11.7-2.8-11.7-12.7c0-2.8,1-5.1,2.6-6.9c-0.3-0.7-1.1-3.3,0.3-6.8c0,0,2.1-0.7,7,2.6c2-0.6,4.2-0.9,6.4-0.9c2.2,0,4.4,0.3,6.4,0.9c4.9-3.3,7-2.6,7-2.6c1.4,3.5,0.5,6.1,0.3,6.8c1.6,1.8,2.6,4.1,2.6,6.9c0,9.8-6,12-11.7,12.6c0.9,0.8,1.7,2.4,1.7,4.7c0,3.4,0,6.2,0,7c0,0.7,0.5,1.5,1.8,1.2c10.2-3.4,17.5-13,17.5-24.3C51.5,11.7,40.1,0.2,25.9,0.2z"></path></svg></mat-icon></a></div></mat-toolbar-row></mat-toolbar><mat-sidenav-container role="main" class="mat-drawer-container mat-sidenav-container sidenav-container mat-drawer-transition has-floating-toc"><div class="mat-drawer-backdrop ng-star-inserted"></div><div class="cdk-visually-hidden cdk-focus-trap-anchor" aria-hidden="true"></div><mat-sidenav tabindex="-1" class="mat-drawer mat-sidenav sidenav ng-tns-c18-1 ng-trigger ng-trigger-transform mat-drawer-side ng-star-inserted mat-drawer-opened" style="transform:none;visibility:visible"><div class="mat-drawer-inner-container ng-tns-c18-1"><aio-nav-menu class="ng-tns-c18-1"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-1 collapsed ng-star-inserted" style="position:relative" href="docs" title="Angular 文档简介" target="_self"><span>简介</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-1 collapsed ng-star-inserted" title="通过构建第一个 Angular 应用来学习基础知识" aria-pressed="false"><span>快速上手</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-1 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="start" title="介绍 Angular 的组件模型、模板语法和组件通讯" target="_self"><span>你的第一个应用</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="start/routing" title="介绍如何使用浏览器的 URL 在组件之间进行路由" target="_self"><span>路由</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="start/data" title="介绍服务以及如何访问外部数据" target="_self"><span>管理数据</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="start/forms" title="学习如何使用表单从用户那里获取并管理数据" target="_self"><span>表单</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="start/deployment" title="通过你的应用放到 Firebase 或自己的服务器上来把它分享给外界" target="_self"><span>部署</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-1 collapsed ng-star-inserted" style="position:relative" href="guide/setup-local" title="使用 Angular CLI 搭建本地开发环境简介" target="_self"><span>搭建环境</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-1 collapsed ng-star-inserted" title="Angular 的基本原理" aria-pressed="false"><span>基本原理</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-1 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-2 collapsed ng-star-inserted" title="介绍 Angular 应用中的一些基本概念。" aria-pressed="false"><span>Angular 的基本概念</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-2 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/architecture" title="Angular 应用中的基本构造块。" target="_self"><span>基本概念简介</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/architecture-modules" title="关于 Angular 模块（NgModules）。" target="_self"><span>模块简介</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/architecture-components" title="关于组件、模板和视图。" target="_self"><span>组件简介</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/architecture-services" title="关于服务与依赖注入。" target="_self"><span>服务与 DI 简介</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/architecture-next-steps" title="超越基础阶段。" target="_self"><span>后续步骤</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-2 collapsed ng-star-inserted" title="英雄指南是这里大量 Angular 范例的基础" aria-pressed="false"><span>英雄指南</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-2 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="tutorial" title="《英雄指南》教程简介" target="_self"><span>简介</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="tutorial/toh-pt0" title="创建应用的外壳" target="_self"><span>应用的“外壳”</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="tutorial/toh-pt1" title="第一部分：构建一个简单的英雄编辑器" target="_self"><span>1. 英雄编辑器</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="tutorial/toh-pt2" title="第二部分：构建一个主从结构的页面，用于展现英雄列表。" target="_self"><span>2. 显示英雄列表</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="tutorial/toh-pt3" title="第三部分：把主从结构的视图重构成几个独立的组件。" target="_self"><span>3. 创建特性组件</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="tutorial/toh-pt4" title="第四部分：创建一个可复用的服务来管理英雄数据。" target="_self"><span>4. 添加服务</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="tutorial/toh-pt5" title="第五部分：添加 Angular 路由器，并且学习在视图之间导航。" target="_self"><span>5. 添加应用内导航</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="tutorial/toh-pt6" title="第六部分：通过 HTTP 来获取并保存英雄数据。" target="_self"><span>6. 从服务器获取数据</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-2 collapsed ng-star-inserted" title="通过数据绑定构建动态视图" aria-pressed="false"><span>组件与模板</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-2 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/displaying-data" title="属性绑定可以帮助应用把数据显示在界面上" target="_self"><span>显示数据</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/template-syntax" title="学习如何写模板，以便借助数据绑定机制显示数据并响应事件。" target="_self"><span>模板语法</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/user-input" title="用户输入会触发 DOM 事件。Angular 会通过事件绑定来监听那些事件，并把修改后的值传回应用的组件和模型中。" target="_self"><span>用户输入</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/lifecycle-hooks" title="Angular 调用指令和组件的生命周期钩子函数，包括它的创建、变更和销毁时。" target="_self"><span>生命周期钩子</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/component-interaction" title="在不同的指令和组件之间共享信息" target="_self"><span>组件交互</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/component-styles" title="添加专属于某个组件的样式" target="_self"><span>组件样式</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/dynamic-component-loader" title="动态加载组件" target="_self"><span>动态组件</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/elements" title="把组件转换成自定义元素" target="_self"><span>Angular 元素</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/attribute-directives" title="属性型指令把行为添加到现有元素上。" target="_self"><span>属性型指令</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/structural-directives" title="结构型指令可以操纵页面的布局" target="_self"><span>结构型指令</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/pipes" title="管道可以在模板中转换显示的内容。" target="_self"><span>管道</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-2 collapsed ng-star-inserted" title="Angular 的表单" aria-pressed="false"><span>表单</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-2 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/forms-overview" title="表单可以创建集中、高效、引人注目的输入体验。Angular 表单可以协调一组数据绑定控件，跟踪变更，验证输入，并表达错误信息。" target="_self"><span>简介</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/reactive-forms" title="使用 FormBuilder、表单组和表单数组创建响应式表单。" target="_self"><span>响应式表单</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/forms" title="使用指令和 Angular 模板语法创建模板驱动表单。" target="_self"><span>模板驱动表单</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/form-validation" title="验证用户的表单输入" target="_self"><span>表单验证</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/dynamic-form" title="使用 FormGroup 渲染动态表单。" target="_self"><span>动态表单</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-2 collapsed ng-star-inserted" title="Observable 与 RxJS" aria-pressed="false"><span>Observable 与 RxJS</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-2 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/observables" title="" target="_self"><span>可观察对象(Observable)</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/rx-library" title="" target="_self"><span>RxJS 库</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/observables-in-angular" title="" target="_self"><span>Angular 中的可观察对象</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/practical-observable-usage" title="" target="_self"><span>用法实战</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/comparing-observables" title="" target="_self"><span>与其它技术的比较</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-2 collapsed ng-star-inserted" title="Angular 中的模块" aria-pressed="false"><span>NgModules</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-2 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/ngmodules" title="使用 NgModule 让你的应用更高效" target="_self"><span>NgModule 简介</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/ngmodule-vs-jsmodule" title="JavaScript 模块和 NgModule 之间的差异" target="_self"><span>JS 模块 vs NgModule</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/bootstrapping" title="告诉 Angular 如何在根 &quot;AppModule&quot; 中构造和引导应用。" target="_self"><span>应用的根模块</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/frequent-ngmodules" title="介绍最常用的 NgModule" target="_self"><span>常用模块</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/module-types" title="介绍特性模块的几种类型" target="_self"><span>特性模块的分类</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/entry-components" title="关于 Angular 中入口组件的一切" target="_self"><span>入口组件</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/feature-modules" title="创建特性模块，以组织你的代码" target="_self"><span>特性模块</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/providers" title="服务提供商与 NgModule" target="_self"><span>服务提供商</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/singleton-services" title="创建单例服务" target="_self"><span>单例服务</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/lazy-loading-ngmodules" title="惰性加载模块，以提高应用的性能" target="_self"><span>惰性加载的特性模块</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/sharing-ngmodules" title="共享 NgModule 让你的应用现代化。" target="_self"><span>共享 NgModule</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/ngmodule-api" title="理解 NgModule 的那些细节。" target="_self"><span>NgModule API</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/ngmodule-faq" title="回答关于 NgModules 的常见问题。" target="_self"><span>NgModule 常见问题</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-2 collapsed ng-star-inserted" title="依赖注入：创建并注入各种服务。" aria-pressed="false"><span>依赖注入</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-2 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/dependency-injection" title="Angular 的依赖注入系统能够为 Angular 创建的类创建并交付它们所依赖的服务。" target="_self"><span>Angular 依赖注入</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/hierarchical-dependency-injection" title="与组件树平行的注入器树，并支持嵌套的依赖。" target="_self"><span>多级注入器</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/dependency-injection-providers" title="各种提供商类型的更多知识。" target="_self"><span>DI 提供商</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/dependency-injection-in-action" title="依赖注入的使用技巧" target="_self"><span>DI 实战</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/dependency-injection-navtree" title="使用注入器树来查找父组件。" target="_self"><span>浏览组件树</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/http" title="通过 HTTP 协议与远程服务器对话。" target="_self"><span>HttpClient</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/router" title="揭示如何通过 Angular 路由进行基本的屏幕导航。" target="_self"><span>路由与导航</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-2 collapsed ng-star-inserted" title="Angular 动画系统指南" aria-pressed="false"><span>动画</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-2 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/animations" title="Angular 动画的基础技术。" target="_self"><span>简介</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/transition-and-triggers" title="转场与触发器的高级技术。" target="_self"><span>转场与触发器</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/complex-animation-sequences" title="复杂的 Angular 动画序列。" target="_self"><span>复杂序列</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/reusable-animations" title="创建可复用的动画。" target="_self"><span>可复用动画</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/route-animations" title="为路由提供转场动画。" target="_self"><span>路由转场动画</span></a></div></aio-nav-item></div></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-1 collapsed ng-star-inserted" title="把 Angular 用到你的实际工作中的一些技巧" aria-pressed="false"><span>其它技术</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-1 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/security" title="Angular 应用开发中的安全技术。" target="_self"><span>安全</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/i18n" title="把应用模板中的文本翻译成多种语言。" target="_self"><span>国际化（i18n）</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/accessibility" title="设计能被所有用户访问的应用" target="_self"><span>无障碍（a11y）</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-2 collapsed ng-star-inserted" title="Angular Service Worker: 控制应用资源的缓存。" aria-pressed="false"><span>Service Worker 与 PWA</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-2 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/service-worker-intro" title="Angular 对 Service Worker 的实现提升了慢速或不稳定的网络连接下的用户体验。" target="_self"><span>简介</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/service-worker-getting-started" title="在 CLI 项目中启用 Service Worker，并在浏览器中查看效果。" target="_self"><span>快速上手</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/app-shell" title="在 CLI 项目中启用应用外壳。" target="_self"><span>应用外壳</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/service-worker-communications" title="那些能让你和 Angular 的 Service Worker 通讯的服务类。" target="_self"><span>与 Service Worker 通讯</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/service-worker-devops" title="使用 Service Worker 运行应用、管理应用更新、调试以及杀掉正在运行的应用。" target="_self"><span>生产环境下的 Service Worker</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/service-worker-config" title="配置 Service Worker 的缓存行为。" target="_self"><span>Service Worker 配置</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/universal" title="使用 Angular Universal 在服务端渲染 HTML。" target="_self"><span>服务端渲染</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-2 collapsed ng-star-inserted" title="把 AngularJS 应用增量式的升级到 Angular。" aria-pressed="false"><span>从 AngularJS 升级</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-2 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/upgrade" title="把 AngularJS 应用增量式的升级到 Angular。" target="_self"><span>升级步骤</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/upgrade-performance" title="用更灵活的方式把 AngularJS 升级到 Angular。" target="_self"><span>更关注性能的升级方式</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/ajs-quick-reference" title="学习如何把 AngularJS 的概念映射到 Angular 中。" target="_self"><span>AngularJS 与 Angular 的概念对照</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-2 collapsed ng-star-inserted" title="使用共享库扩展 Angular" aria-pressed="false"><span>开发 Angular 库</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-2 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/libraries" title="理解何时以及如何使用和创建库。" target="_self"><span>库概览</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/using-libraries" title="把已发布的库集成进你的应用中。" target="_self"><span>使用已发布的库</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/creating-libraries" title="通过创建、发布和使用你自己的库来扩展 Angular。" target="_self"><span>创建库</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-2 collapsed ng-star-inserted" title="理解原理图" aria-pressed="false"><span>原理图（Schematic）</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-2 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/schematics" title="理解 Angular 如何使用原理图。" target="_self"><span>原理图概览</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/schematics-authoring" title="理解原理图的结构。" target="_self"><span>制作原理图</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/schematics-for-libraries" title="使用原理图来把你的库集成进 Angular CLI 中。" target="_self"><span>库的原理图</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/cli-builder" title="使用构建器定制 Angular CLI。" target="_self"><span>CLI 构建器</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/web-worker" title="在 Angular CLI 中使用 Web Worker。" target="_self"><span>Web Worker</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-1 expanded selected ng-star-inserted" title="关于构建、测试和部署的信息" aria-pressed="true"><span>开发工作流</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-1 expanded selected"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-2 expanded selected ng-star-inserted" title="理解 AOT 预先编译器。" aria-pressed="true"><span>AOT 预先编译器</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-2 expanded selected"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/aot-compiler" title="学习为何以及如何使用预先编译器。" target="_self"><span>预先编译</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 expanded selected ng-star-inserted" style="position:relative" href="guide/angular-compiler-options" title="配置 AOT 编译。" target="_self"><span>Angular 编译器选项</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/aot-metadata-errors" title="解决 AOT 编译错误。" target="_self"><span>AOT 元数据错误</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/template-typecheck" title="Angular 中的模板类型检查。" target="_self"><span>模板类型检查</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/build" title="构建应用及为应用启动开发服务器。" target="_self"><span>构建与运行</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/bazel" title="如何配置你的环境，以利用 Bazel 进行构建和测试。" target="_self"><span>使用 Bazel 进行构建</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/testing" title="测试 Angular 应用的技巧与实践。" target="_self"><span>测试</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/deployment" title="了解如何部署 Angular 应用。" target="_self"><span>发布</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-2 collapsed ng-star-inserted" title="与开发环境和工具集成起来" aria-pressed="false"><span>开发工具集成</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-2 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-3 collapsed ng-star-inserted" style="position:relative" href="guide/language-service" title="使用 Angular 语言服务加速开发。" target="_self"><span>语言服务</span></a></div></aio-nav-item></div></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-1 collapsed ng-star-inserted" title="工作空间与项目的结构，及其配置文件。" aria-pressed="false"><span>配置</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-1 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/file-structure" title="Angular 工作区在文件系统中是怎样的。" target="_self"><span>项目文件结构</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/workspace-config" title="&quot;angular.json&quot; 包含供 CLI 命令使用的工作区和项目默认配置。" target="_self"><span>工作区配置</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/npm-packages" title="开发期间和运行期间所需的 npm 包的说明。" target="_self"><span>npm 包</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/typescript-configuration" title="给 Angular 开发者的 TypeScript 配置。" target="_self"><span>TypeScript 配置</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/browser-support" title="浏览器支持与腻子脚本指南。" target="_self"><span>浏览器支持</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-1 collapsed ng-star-inserted" title="Angular 的版本发布实践、更新与升级。" aria-pressed="false"><span>发布信息</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-1 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/updating" title="如何把 Angular 应用和库升级到最新版本。" target="_self"><span>保持最新</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/releases" title="Angular 的版本、发布、支持、弃用策略及实践。" target="_self"><span>发布实践</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/updating-to-version-9" title="支持把你的应用从 8 升级到 9。" target="_self"><span>升级到第 9 版</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/deprecations" title="弃用的 Angular API 和特性汇总。" target="_self"><span>弃用清单</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/ivy" title="关于 Angular Ivy 的编译与渲染管道。" target="_self"><span>Angular Ivy</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-1 collapsed ng-star-inserted" title="Angular 语法、编码、术语汇总。" aria-pressed="false"><span>快捷手册</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-1 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/cheatsheet" title="关于 Angular 常用编码技术的快速指南。" target="_self"><span>速查表</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/styleguide" title="写出 Angular 风格的程序" target="_self"><span>风格指南</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="guide/glossary" title="Angular 中最重要的词汇的简要定义。" target="_self"><span>词汇表</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><button type="button" class="vertical-menu-item heading level-1 collapsed ng-star-inserted" title="Angular CLI 命令参考手册。" aria-pressed="false"><span>CLI 命令</span><mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><div class="heading-children level-1 collapsed"><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli" title="CLI 工具介绍、命令、语法" target="_self"><span>概览</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/usage-analytics-gathering" title="管理员如何从用户那里收集使用情况分析。" target="_self"><span>使用情况分析</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/add" title="ng add." target="_self"><span>ng add</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/analytics" title="ng analytics." target="_self"><span>ng analytics</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/build" title="ng build." target="_self"><span>ng build</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/config" title="ng config." target="_self"><span>ng config</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/deploy" title="ng deploy." target="_self"><span>ng deploy</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/doc" title="ng doc." target="_self"><span>ng doc</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/e2e" title="ng e2e." target="_self"><span>ng e2e</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/generate" title="ng generate." target="_self"><span>ng generate</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/help" title="ng help." target="_self"><span>ng help</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/lint" title="ng lint." target="_self"><span>ng lint</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/new" title="ng new." target="_self"><span>ng new</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/run" title="ng run." target="_self"><span>ng run</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/serve" title="ng serve." target="_self"><span>ng serve</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/test" title="ng test." target="_self"><span>ng test</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/update" title="ng update." target="_self"><span>ng update</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/version" title="ng version." target="_self"><span>ng version</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-2 collapsed ng-star-inserted" style="position:relative" href="cli/xi18n" title="ng xi18n." target="_self"><span>ng xi18n</span></a></div></aio-nav-item></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-1 collapsed ng-star-inserted" style="position:relative" href="api" title="关于 Angular 中类和值的详细信息。" target="_self"><span>API 参考手册</span></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><div class="mat-divider ng-star-inserted" style="margin:4px 20px;border-top:1px solid #d3d3d3"></div></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-1 collapsed ng-star-inserted" style="position:relative" href="https://github.com/ng-docs/ng-docs.github.io/issues" title="github 上的中文互助问答区" target="_blank"><span>互助问答</span><mat-icon role="img" class="mat-icon notranslate material-icons mat-icon-no-color ng-star-inserted" aria-hidden="true">open_in_new</mat-icon></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-1 collapsed ng-star-inserted" style="position:relative" href="https://material.angular.cn" title="Angular Material 组件库的中文文档" target="_blank"><span>官方 Material 组件库</span><mat-icon role="img" class="mat-icon notranslate material-icons mat-icon-no-color ng-star-inserted" aria-hidden="true">open_in_new</mat-icon></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-1 collapsed ng-star-inserted" style="position:relative" href="https://ng.ant.design/" title="Ant Design 的 Angular 实现，服务于企业级后台产品。" target="_blank"><span>ng-zorro 组件库</span><mat-icon role="img" class="mat-icon notranslate material-icons mat-icon-no-color ng-star-inserted" aria-hidden="true">open_in_new</mat-icon></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-1 collapsed ng-star-inserted" style="position:relative" href="https://ng.mobile.ant.design/" title="Ant Design Mobile 的 Angular 实现，服务于无线产品。" target="_blank"><span>ng-zorro mobile 组件库</span><mat-icon role="img" class="mat-icon notranslate material-icons mat-icon-no-color ng-star-inserted" aria-hidden="true">open_in_new</mat-icon></a></div></aio-nav-item><aio-nav-item class="ng-star-inserted"><div class="ng-star-inserted"><a class="vertical-menu-item level-1 collapsed ng-star-inserted" style="position:relative" href="https://flutter-io.cn/" title="Flutter 中文文档站" target="_blank"><span>友站：Flutter 中文</span><mat-icon role="img" class="mat-icon notranslate material-icons mat-icon-no-color ng-star-inserted" aria-hidden="true">open_in_new</mat-icon></a></div></aio-nav-item></aio-nav-menu><div class="doc-version ng-tns-c18-1"><aio-select><div class="form-select-menu"><button class="form-select-button"><span><strong></strong></span><span>stable (v9.0.0)</span></button></div></aio-select></div></div></mat-sidenav><div class="cdk-visually-hidden cdk-focus-trap-anchor" aria-hidden="true"></div><mat-sidenav-content cdkscrollable="" class="mat-drawer-content mat-sidenav-content ng-star-inserted" style="margin-left:261px"><main role="main" class="sidenav-content" id="guide-angular-compiler-options"><aio-mode-banner></aio-mode-banner><aio-doc-viewer class=""><div style="opacity:1"><div class="github-links"><a href="https://github.com/angular/angular-cn/edit/aio/aio/content/guide/angular-compiler-options.md?message=docs%3A%20请简述你的修改..." aria-label="提供编辑建议" title="提供编辑建议"><i class="material-icons" aria-hidden="true" role="img">mode_edit</i></a></div><div class="content"><h1 id="angular-compiler-options" translation-result="on">Angular 编译器选项<a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#angular-compiler-options"><i class="material-icons">link</i></a></h1><aio-toc class="embedded" ng-version="9.0.0-rc.11"><div class="toc-inner no-print collapsed ng-star-inserted"><button type="button" title="Expand/collapse contents" aria-label="Expand/collapse contents" class="toc-heading embedded secondary ng-star-inserted" aria-pressed="false">目录<mat-icon role="img" svgicon="keyboard_arrow_right" class="mat-icon notranslate rotating-icon collapsed mat-icon-no-color" aria-hidden="true"><svg focusable="false" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z"></path></svg></mat-icon></button><ul class="toc-list embedded"><li class="h2 ng-star-inserted" title="用 extends 语法配置继承方式"><a href="guide/angular-compiler-options#configuration-inheritance-with-extends">用 <code>extends</code> 语法配置继承方式</a></li><li class="h2 ng-star-inserted" title="模板选项"><a href="guide/angular-compiler-options#template-options">模板选项</a></li><li class="h3 ng-star-inserted" title="allowEmptyCodegenFiles"><a href="guide/angular-compiler-options#allowemptycodegenfiles"><code>allowEmptyCodegenFiles</code></a></li><li class="h3 secondary ng-star-inserted" title="annotationsAs"><a href="guide/angular-compiler-options#annotationsas"><code>annotationsAs</code></a></li><li class="h3 secondary ng-star-inserted" title="annotateForClosureCompiler"><a href="guide/angular-compiler-options#annotateforclosurecompiler"><code>annotateForClosureCompiler</code></a></li><li class="h3 secondary ng-star-inserted" title="disableExpressionLowering"><a href="guide/angular-compiler-options#disableexpressionlowering"><code>disableExpressionLowering</code></a></li><li class="h3 secondary ng-star-inserted" title="disableTypeScriptVersionCheck"><a href="guide/angular-compiler-options#disabletypescriptversioncheck"><code>disableTypeScriptVersionCheck</code></a></li><li class="h3 secondary ng-star-inserted" title="enableIvy"><a href="guide/angular-compiler-options#enableivy"><code>enableIvy</code></a></li><li class="h3 secondary ng-star-inserted" title="enableResourceInlining"><a href="guide/angular-compiler-options#enableresourceinlining"><code>enableResourceInlining</code></a></li><li class="h3 secondary ng-star-inserted" title="enableLegacyTemplate"><a href="guide/angular-compiler-options#enablelegacytemplate"><code>enableLegacyTemplate</code></a></li><li class="h3 secondary ng-star-inserted" title="flatModuleId"><a href="guide/angular-compiler-options#flatmoduleid"><code>flatModuleId</code></a></li><li class="h3 secondary ng-star-inserted" title="flatModuleOutFile"><a href="guide/angular-compiler-options#flatmoduleoutfile"><code>flatModuleOutFile</code></a></li><li class="h3 secondary ng-star-inserted" title="fullTemplateTypeCheck"><a href="guide/angular-compiler-options#fulltemplatetypecheck"><code>fullTemplateTypeCheck</code></a></li><li class="h3 secondary ng-star-inserted" title="generateCodeForLibraries"><a href="guide/angular-compiler-options#generatecodeforlibraries"><code>generateCodeForLibraries</code></a></li><li class="h3 secondary ng-star-inserted" title="preserveWhitespaces"><a href="guide/angular-compiler-options#preservewhitespaces"><code>preserveWhitespaces</code></a></li><li class="h3 secondary ng-star-inserted" title="skipMetadataEmit"><a href="guide/angular-compiler-options#skipmetadataemit"><code>skipMetadataEmit</code></a></li><li class="h3 secondary ng-star-inserted" title="skipTemplateCodegen"><a href="guide/angular-compiler-options#skiptemplatecodegen"><code>skipTemplateCodegen</code></a></li><li class="h3 secondary ng-star-inserted" title="strictMetadataEmit"><a href="guide/angular-compiler-options#strictmetadataemit"><code>strictMetadataEmit</code></a></li><li class="h3 secondary ng-star-inserted" title="strictInjectionParameters"><a href="guide/angular-compiler-options#strictinjectionparameters"><code>strictInjectionParameters</code></a></li><li class="h3 secondary ng-star-inserted" title="strictTemplates"><a href="guide/angular-compiler-options#stricttemplates"><code>strictTemplates</code></a></li><li class="h3 secondary ng-star-inserted" title="trace"><a href="guide/angular-compiler-options#trace"><code>trace</code></a></li></ul><button type="button" title="Expand/collapse contents" aria-label="Expand/collapse contents" class="toc-more-items embedded material-icons collapsed ng-star-inserted" aria-pressed="false"></button></div></aio-toc><h1 translation-origin="off" id="angular-compiler-options">Angular compiler options<a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#angular-compiler-options"><i class="material-icons">link</i></a></h1><p translation-result="on">使用 <a href="guide/aot-compiler">AoT 编译</a> 时，可以通过在 <code>tsconfig.json</code> <a href="guide/typescript-configuration">TypeScript 配置文件中</a>指定<em>模板</em>编译器选项来控制如何编译应用程序。</p><p translation-origin="off">When you use <a href="guide/aot-compiler">AOT compilation</a>, you can control how your application is compiled by specifying <em>template</em> compiler options in the <code>tsconfig.json</code> <a href="guide/typescript-configuration">TypeScript configuration file</a>.</p><p translation-result="on">模板选项对象 <code>angularCompilerOptions</code> 和为 TypeScript 编译器提供标准选项的 <code>compilerOptions</code> 对象是兄弟。</p><p translation-origin="off">The template options object, <code>angularCompilerOptions</code>, is a sibling to the <code>compilerOptions</code> object that supplies standard options to the TypeScript compiler.</p><code-example language="json" ng-version="9.0.0-rc.11"><div style="display:none">{ "compilerOptions": { "experimentalDecorators": true, ... }, "angularCompilerOptions": { "fullTemplateTypeCheck": true, "preserveWhitespaces": true, ... } }</div><aio-code><pre class="lang-json prettyprint">      <button title="Copy code snippet" class="material-icons copy-button no-print ng-star-inserted" aria-label="">
        <span aria-hidden="true">content_copy</span>
      </button>
      <code class="animated fadeIn"><span class="pun">{</span><span class="pln">
    </span><span class="str">"compilerOptions"</span><span class="pun">:</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
      </span><span class="str">"experimentalDecorators"</span><span class="pun">:</span><span class="pln"> </span><span class="kwd">true</span><span class="pun">,</span><span class="pln">
                </span><span class="pun">...</span><span class="pln">
    </span><span class="pun">},</span><span class="pln">
    </span><span class="str">"angularCompilerOptions"</span><span class="pun">:</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
      </span><span class="str">"fullTemplateTypeCheck"</span><span class="pun">:</span><span class="pln"> </span><span class="kwd">true</span><span class="pun">,</span><span class="pln">
      </span><span class="str">"preserveWhitespaces"</span><span class="pun">:</span><span class="pln"> </span><span class="kwd">true</span><span class="pun">,</span><span class="pln">
                </span><span class="pun">...</span><span class="pln">
    </span><span class="pun">}</span><span class="pln">
</span><span class="pun">}</span></code>
    </pre></aio-code></code-example><a id="tsconfig-extends"></a><h2 id="configuration-inheritance-with-extends" translation-result="on">用 <code>extends</code> 语法配置继承方式<a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#configuration-inheritance-with-extends"><i class="material-icons">link</i></a></h2><h2 translation-origin="off" id="configuration-inheritance-with-extends">Configuration inheritance with extends<a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#configuration-inheritance-with-extends"><i class="material-icons">link</i></a></h2><p translation-result="on">像 TypeScript 编译器一样，Angular 的 AOT 编译器也支持对 TypeScript 配置文件 <code>tsconfig.json</code> 的 <code>angularCompilerOptions</code> 进行 <code>extends</code>。<code>extends</code> 属性位于顶级，和 <code>compilerOptions</code> 和 <code>angularCompilerOptions</code> 平级。</p><p translation-origin="off">Like the TypeScript compiler, The Angular AOT compiler also supports <code>extends</code> in the <code>angularCompilerOptions</code> section of the TypeScript configuration file, <code>tsconfig.json</code>. The <code>extends</code> property is at the top level, parallel to <code>compilerOptions</code> and <code>angularCompilerOptions</code>.</p><p translation-result="on">使用 <code>extends</code> 属性，TypeScript 配置可以从另一个文件中继承设置。首先从基础文件中加载配置项，然后被继承它的 <code>tsconfig</code> 文件中的配置项覆写。</p><p translation-origin="off">A TypeScript configuration can inherit settings from another file using the <code>extends</code> property. The configuration options from the base file are loaded first, then overridden by those in the inheriting <code>tsconfig</code> file.</p><p translation-result="on">比如：</p><p translation-origin="off">For example:</p><code-example language="json" ng-version="9.0.0-rc.11"><div style="display:none">{ "extends": "../tsconfig.base.json", "compilerOptions": { "experimentalDecorators": true, ... }, "angularCompilerOptions": { "fullTemplateTypeCheck": true, "preserveWhitespaces": true, ... } }</div><aio-code><pre class="lang-json prettyprint">      <button title="Copy code snippet" class="material-icons copy-button no-print ng-star-inserted" aria-label="">
        <span aria-hidden="true">content_copy</span>
      </button>
      <code class="animated fadeIn"><span class="pun">{</span><span class="pln">
  </span><span class="str">"extends"</span><span class="pun">:</span><span class="pln"> </span><span class="str">"../tsconfig.base.json"</span><span class="pun">,</span><span class="pln">
  </span><span class="str">"compilerOptions"</span><span class="pun">:</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
    </span><span class="str">"experimentalDecorators"</span><span class="pun">:</span><span class="pln"> </span><span class="kwd">true</span><span class="pun">,</span><span class="pln">
    </span><span class="pun">...</span><span class="pln">
  </span><span class="pun">},</span><span class="pln">
  </span><span class="str">"angularCompilerOptions"</span><span class="pun">:</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
    </span><span class="str">"fullTemplateTypeCheck"</span><span class="pun">:</span><span class="pln"> </span><span class="kwd">true</span><span class="pun">,</span><span class="pln">
    </span><span class="str">"preserveWhitespaces"</span><span class="pun">:</span><span class="pln"> </span><span class="kwd">true</span><span class="pun">,</span><span class="pln">
    </span><span class="pun">...</span><span class="pln">
  </span><span class="pun">}</span><span class="pln">
</span><span class="pun">}</span></code>
    </pre></aio-code></code-example><p translation-result="on">欲知详情，请参见 <a href="https://www.typescriptlang.org/docs/handbook/tsconfig-json.html">TypeScript 手册</a> 。</p><p translation-origin="off">For more information, see the <a href="https://www.typescriptlang.org/docs/handbook/tsconfig-json.html">TypeScript Handbook</a>.</p><h2 id="template-options" translation-result="on">模板选项<a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#template-options"><i class="material-icons">link</i></a></h2><h2 translation-origin="off" id="template-options">Template options<a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#template-options"><i class="material-icons">link</i></a></h2><p translation-result="on">以下选项可用于配置 AoT 模板编译器。</p><p translation-origin="off">The following options are available for configuring the AOT template compiler.</p><h3 id="allowemptycodegenfiles"><code>allowEmptyCodegenFiles</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#allowemptycodegenfiles"><i class="material-icons">link</i></a></h3><p translation-result="on">如果为<code>true</code>，则生成所有可能的文件 —— 即使它们为空。默认值为 <code>false</code>。 Bazel 的构建规则使用它来简化 Bazel 规则跟踪文件依赖性的方式。不要在 Bazel 规则之外使用此选项。</p><p translation-origin="off">When <code>true</code>, generate all possible files even if they are empty. Default is <code>false</code>. Used by the Bazel build rules to simplify how Bazel rules track file dependencies. Do not use this option outside of the Bazel rules.</p><h3 id="annotationsas"><code>annotationsAs</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#annotationsas"><i class="material-icons">link</i></a></h3><p translation-result="on">修改 Angular 专有注解的生成方式，以改善摇树优化。非 Angular 注解不受影响。可选值为 <code><a href="api/upgrade/static" class="code-anchor">static</a> fields</code>（默认值）或<code>decorators</code> 。</p><p translation-origin="off">Modifies how Angular-specific annotations are emitted to improve tree-shaking. Non-Angular annotations are not affected. One of <code><a href="api/upgrade/static" class="code-anchor">static</a> fields</code> (the default) or <code>decorators</code>.</p><ul><li><p translation-result="on">默认情况下，编译器会用类中的静态字段替换装饰器，这允许像 <a href="https://github.com/google/closure-compiler">Closure 编译器</a>这样的高级摇树器删除未使用的类。</p><p translation-origin="off">By default, the compiler replaces decorators with a static field in the class, which allows advanced tree-shakers like <a href="https://github.com/google/closure-compiler">Closure compiler</a> to remove unused classes.</p></li></ul><ul><li><p translation-result="on"><code>decorators</code> 值会将装饰器保留在原处，这将使编译速度更快。TypeScript 会发出对 <code>__decorate</code> 辅助程序的调用。使用 <code>--emitDecoratorMetadata</code> 进行运行时反射（但请注意，生成的代码将无法正确摇树）。</p><p translation-origin="off">The <code>decorators</code> value leaves the decorators in place, which makes compilation faster. TypeScript emits calls to the<code>__decorate</code> helper. Use <code>--emitDecoratorMetadata</code> for runtime reflection (but note that the resulting code will not properly tree-shake.</p></li></ul><h3 id="annotateforclosurecompiler"><code>annotateForClosureCompiler</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#annotateforclosurecompiler"><i class="material-icons">link</i></a></h3><p translation-result="on">如果为 <code>true</code>，则使用 <a href="https://github.com/angular/tsickle">Tsickle</a> 来用 <a href="http://usejsdoc.org/">JSDoc</a> 对生成的 JavaScript 代码进行注解，这些注释是供 <a href="https://github.com/google/closure-compiler">Closure 编译器</a> 使用的。默认值为<code>false</code> 。</p><p translation-origin="off">When <code>true</code>, use <a href="https://github.com/angular/tsickle">Tsickle</a> to annotate the emitted JavaScript with <a href="http://usejsdoc.org/">JSDoc</a> comments needed by the <a href="https://github.com/google/closure-compiler">Closure Compiler</a>. Default is <code>false</code>.</p><h3 id="disableexpressionlowering"><code>disableExpressionLowering</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#disableexpressionlowering"><i class="material-icons">link</i></a></h3><p translation-result="on">如果为<code>true</code>（默认值），则转换在注解中使用或允许使用的代码，以允许从模板的工厂模块导入代码。欲知详情，请参见<a href="guide/aot-compiler#metadata-rewriting">元数据重写</a> 。</p><p translation-origin="off">When <code>true</code> (the default), transforms code that is or could be used in an annotation, to allow it to be imported from template factory modules. See <a href="guide/aot-compiler#metadata-rewriting">metadata rewriting</a> for more information.</p><p translation-result="on">如果为<code>false</code>，则禁用此重写，你必须手动进行重写。</p><p translation-origin="off">When <code>false</code>, disables this rewriting, requiring the rewriting to be done manually.</p><h3 id="disabletypescriptversioncheck"><code>disableTypeScriptVersionCheck</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#disabletypescriptversioncheck"><i class="material-icons">link</i></a></h3><p translation-result="on">如果为 <code>true</code>，则在使用不受支持的 TypeScript 版本时，编译器不会检查 TypeScript 版本，并且不会报错。不建议使用，因为不受支持的 TypeScript 版本可能具有未定义的行为。默认值为 <code>false</code> 。</p><p translation-origin="off">When <code>true</code>, the compiler does not check the TypeScript version and does not report an error when an unsupported version of TypeScript is used. Not recommended, as unsupported versions of TypeScript might have undefined behavior. Default is <code>false</code>.</p><h3 id="enableivy"><code>enableIvy</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#enableivy"><i class="material-icons">link</i></a></h3><p translation-result="on">启用 <a href="guide/ivy">Ivy</a> 编译和渲染管道。从版本 9 开始，默认值为 <code>true</code> 。在版本 9 中，您可以<a href="guide/ivy#opting-out-of-angular-ivy">选择不用 Ivy</a> 而是继续使用以前的编译器 View Engine。</p><p translation-origin="off">Enables the <a href="guide/ivy">Ivy</a> compilation and rendering pipeline. Default is <code>true</code>, as of version 9. In version 9, you can <a href="guide/ivy#opting-out-of-angular-ivy">opt out of Ivy</a> to continue using the previous compiler, View Engine.</p><p translation-result="on">对于使用 CLI 生成的<em>库</em>项目，<code>prod</code> 配置默认在版本9中为 <code>false</code>。</p><p translation-origin="off">For library projects generated with the CLI, the <code>prod</code> configuration default is <code>false</code> in version 9.</p><h3 id="enableresourceinlining"><code>enableResourceInlining</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#enableresourceinlining"><i class="material-icons">link</i></a></h3><p translation-result="on">当为 <code>true</code> 时，将所有 <code>@<a href="api/core/Component" class="code-anchor">Component</a></code> 装饰器中的 <code><a href="api/core/Component#templateUrl" class="code-anchor">templateUrl</a></code> 和 <code><a href="api/core/Component#styleUrls" class="code-anchor">styleUrls</a></code> 属性替换为 <code>template</code> 和 <code>styles</code> 属性中的内联内容。</p><p translation-origin="off">When <code>true</code>, replaces the <code><a href="api/core/Component#templateUrl" class="code-anchor">templateUrl</a></code> and <code><a href="api/core/Component#styleUrls" class="code-anchor">styleUrls</a></code> property in all <code>@<a href="api/core/Component" class="code-anchor">Component</a></code> decorators with inlined contents in <code>template</code> and <code>styles</code> properties.</p><p translation-result="on">启用后，<code>ngc</code> 的 <code>.js</code> 输出不会包含任何延迟加载的模板或样式 URL。</p><p translation-origin="off">When enabled, the <code>.js</code> output of <code>ngc</code> does not include any lazy-loaded template or style URLs.</p><p translation-result="on">对于使用 CLI 生成的库项目，dev 配置下默认为 <code>true</code> 。</p><p translation-origin="off">For library projects generated with the CLI, the dev configuration default is <code>true</code>.</p><a id="enablelegacytemplate"></a><h3 id="enablelegacytemplate"><code>enableLegacyTemplate</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#enablelegacytemplate"><i class="material-icons">link</i></a></h3><p translation-result="on">如果为 <code>true</code>，则启用 Angular 4.0 中为了避免与同名的 DOM 元素冲突而不推荐使用的 <code>&lt;template&gt;</code> 元素（推荐改用<code>&lt;ng-template&gt;</code>）。默认值为 <code>false</code>。某些第三方 Angular 库可能需要它。</p><p translation-origin="off">When <code>true</code>, enables use of the <code>&lt;template&gt;</code> element, which was deprecated in Angular 4.0, in favor of <code>&lt;ng-template&gt;</code> (to avoid colliding with the DOM's element of the same name). Default is <code>false</code>. Might be required by some third-party Angular libraries.</p><h3 id="flatmoduleid"><code>flatModuleId</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#flatmoduleid"><i class="material-icons">link</i></a></h3><p translation-result="on">用于导入扁平模块的模块 ID（当 <code>flatModuleOutFile</code> 为 <code>true</code> 时）。从扁平模块中导入符号时，模板编译器生成的引用将使用该模块的名称。如果 <code>flatModuleOutFile</code> 为 <code>false</code> 则忽略。</p><p translation-origin="off">The module ID to use for importing a flat module (when <code>flatModuleOutFile</code> is <code>true</code>). References generated by the template compiler use this module name when importing symbols from the flat module. Ignored if <code>flatModuleOutFile</code> is <code>false</code>.</p><h3 id="flatmoduleoutfile"><code>flatModuleOutFile</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#flatmoduleoutfile"><i class="material-icons">link</i></a></h3><p translation-result="on">为 <code>true</code> 时，将生成指定文件名和相应扁平模块元数据的扁平模块索引。用于创建像 <code>@angular/core</code> 和 <code>@angular/common</code> 这样打包的扁平模块。使用此选项时，库的 <code>package.json</code> 应引用生成的扁平模块索引而不是库的索引文件。</p><p translation-origin="off">When <code>true</code>, generates a flat module index of the given file name and the corresponding flat module metadata. Use to create flat modules that are packaged similarly to <code>@angular/core</code> and <code>@angular/common</code>. When this option is used, the <code>package.json</code> for the library should refer to the generated flat module index instead of the library index file.</p><p translation-result="on">它只会生成一个 <code>.metadata.json</code> 文件，该文件包含从库索引中导出的符号所需的全部元数据。在生成的 <code>.ngfactory.js</code> 文件中，扁平模块索引用于导入符号，这些符号既包括库索引中的公共 API，也包括缩进的内部符号。</p><p translation-origin="off">Produces only one <code>.metadata.json</code> file, which contains all the metadata necessary for symbols exported from the library index. In the generated <code>.ngfactory.js</code> files, the flat module index is used to import symbols that includes both the public API from the library index as well as shrowded internal symbols.</p><p translation-result="on">默认情况下，<code>files</code> 字段中提供的 <code>.ts</code> 文件会被当做库索引。如果指定了多个 <code>.ts</code> 文件，则使用 <code>libraryIndex</code> 选择要使用的文件。如果提供了多个不带 <code>libraryIndex</code> <code>.ts</code> 文件，则会产生错误。</p><p translation-origin="off">By default the <code>.ts</code> file supplied in the <code>files</code> field is assumed to be the library index. If more than one <code>.ts</code> file is specified, <code>libraryIndex</code> is used to select the file to use. If more than one <code>.ts</code> file is supplied without a <code>libraryIndex</code>, an error is produced.</p><p translation-result="on">使用指定的 <code>flatModuleOutFile</code> 名在与库索引 <code>.d.ts</code> 文件相同的位置创建扁平模块索引 <code>.d.ts</code> 和 <code>.js</code>。</p><p translation-origin="off">A flat module index <code>.d.ts</code> and <code>.js</code> is created with the given <code>flatModuleOutFile</code> name in the same location as the library index <code>.d.ts</code> file.</p><p translation-result="on">例如，如果一个库使用 <code>public_api.ts</code> 文件作为模块的库索引，则 <code>tsconfig.json</code> 的 <code>files</code> 字段就是 <code>["public_api.ts"]</code>。然后，比如把 <code>flatModuleOutFile</code> 选项设置为 <code>"index.js"</code> ，这将生成 <code>index.d.ts</code> 和 <code>index.metadata.json</code> 文件。该库的 <code>package.json</code> 的 <code>module</code> 字段中就会是 <code>"index.js"</code>，而 <code>typings</code> 字段将是<code>"index.d.ts"</code>。</p><p translation-origin="off">For example, if a library uses the <code>public_api.ts</code> file as the library index of the module, the <code>tsconfig.json</code> <code>files</code> field would be <code>["public_api.ts"]</code>. The <code>flatModuleOutFile</code> option could then be set to (for example) <code>"index.js"</code>, which produces <code>index.d.ts</code> and <code>index.metadata.json</code> files. The <code>module</code> field of the library's <code>package.json</code> would be <code>"index.js"</code> and the <code>typings</code> field would be <code>"index.d.ts"</code>.</p><h3 id="fulltemplatetypecheck"><code>fullTemplateTypeCheck</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#fulltemplatetypecheck"><i class="material-icons">link</i></a></h3><p translation-result="on">为 <code>true</code>（推荐）时，会启用模板编译器的<a href="guide/aot-compiler#binding-expression-validation">绑定表达式验证</a>阶段，该阶段使用 TypeScript 来验证绑定表达式。欲知详情，请参见<a href="guide/template-typecheck">模板类型检查</a> 。</p><p translation-origin="off">When <code>true</code> (recommended), enables the <a href="guide/aot-compiler#binding-expression-validation">binding expression validation</a> phase of the template compiler, which uses TypeScript to validate binding expressions. For more information, see <a href="guide/template-typecheck">Template type checking</a>.</p><p translation-result="on">默认值为 <code>false</code>，但是当您使用 CLI 命令 <code>ng new</code> 时，默认生成的项目配置中会将其设置为 <code>true</code>。</p><p translation-origin="off">Default is <code>false</code>, but when you use the CLI command <code>ng new</code>, it is set to <code>true</code> by default in the generated project's configuration.</p><h3 id="generatecodeforlibraries"><code>generateCodeForLibraries</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#generatecodeforlibraries"><i class="material-icons">link</i></a></h3><p translation-result="on">如果为 <code>true</code>（默认值），就会为 <code>.d.ts</code> 和相应的 <code>.metadata.json</code> 生成工厂文件（<code>.ngfactory.js</code> 和 <code>.ngstyle.js</code>）。</p><p translation-origin="off">When <code>true</code> (the default), generates factory files (<code>.ngfactory.js</code> and <code>.ngstyle.js</code>) for <code>.d.ts</code> files with a corresponding <code>.metadata.json</code> file.</p><p translation-result="on">如果为 <code>false</code> ，则仅为 <code>.ts</code> 文件生成工厂文件。当要使用工厂摘要（summary）时，请这么设置。</p><p translation-origin="off">When <code>false</code>, factory files are generated only for <code>.ts</code> files. Do this when using factory summaries.</p><h3 id="preservewhitespaces"><code><a href="api/core/Component#preserveWhitespaces" class="code-anchor">preserveWhitespaces</a></code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#preservewhitespaces"><i class="material-icons">link</i></a></h3><p translation-result="on">如果为 <code>false</code>（默认值），则从编译的模板中删除空白文本节点，这将生成较小的模板工厂模块。设置为 <code>true</code> 以保留空白文本节点。</p><p translation-origin="off">When <code>false</code> (the default), removes blank text nodes from compiled templates, which results in smaller emitted template factory modules. Set to <code>true</code> to preserve blank text nodes.</p><h3 id="skipmetadataemit"><code>skipMetadataEmit</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#skipmetadataemit"><i class="material-icons">link</i></a></h3><p translation-result="on">为<code>true</code> 时，不生成 <code>.metadata.json</code> 文件。默认值为 <code>false</code> 。</p><p translation-origin="off">When <code>true</code>, does not produce <code>.metadata.json</code> files. Default is <code>false</code>.</p><p translation-result="on"><code>.metadata.json</code> 文件包含模板编译器从 <code>.ts</code> 文件中获得的信息，该信息未包含在 TypeScript 编译器生成的 <code>.d.ts</code> 文件中。该信息包括注解的内容（例如组件的模板）等，TypeScript 会将该注解的内容发送到 <code>.js</code> 文件中，但不会发送到 <code>.d.ts</code> 文件。</p><p translation-origin="off">The <code>.metadata.json</code> files contain information needed by the template compiler from a <code>.ts</code> file that is not included in the <code>.d.ts</code> file produced by the TypeScript compiler. This information includes, for example, the content of annotations (such as a component's template), which TypeScript emits to the <code>.js</code> file but not to the <code>.d.ts</code> file.</p><p translation-result="on">您可以在使用工厂摘要（summary）中将其设置为 <code>true</code>，因为工厂摘要中包括 <code>.metadata.json</code> 文件中信息的副本。</p><p translation-origin="off">You can set to <code>true</code> when using factory summaries, because the factory summaries include a copy of the information that is in the <code>.metadata.json</code> file.</p><p translation-result="on">如果要使用 TypeScript 的 <code>--outFile</code> 选项，则设置为 <code>true</code>，因为元数据文件对于这种 TypeScript 输出风格无效。但是，我们不建议将 <code>--outFile</code> 和 Angular 一起使用。请使用打包程序，例如 <a href="https://webpack.js.org/">webpack</a>。</p><p translation-origin="off">Set to <code>true</code> if you are using TypeScript's <code>--outFile</code> option, because the metadata files are not valid for this style of TypeScript output. However, we do not recommend using <code>--outFile</code> with Angular. Use a bundler, such as <a href="https://webpack.js.org/">webpack</a>, instead.</p><h3 id="skiptemplatecodegen"><code>skipTemplateCodegen</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#skiptemplatecodegen"><i class="material-icons">link</i></a></h3><p translation-result="on">为 <code>true</code> 时，不生成 <code>.ngfactory.js</code> 和 <code>.ngstyle.js</code> 文件。这将关闭大多数模板编译器，并禁用模板诊断报告。</p><p translation-origin="off">When <code>true</code>, does not emit <code>.ngfactory.js</code> and <code>.ngstyle.js</code> files. This turns off most of the template compiler and disables the reporting of template diagnostics.</p><p translation-result="on">可用于指示模板编译器生成 <code>.metadata.json</code> 文件，以使用 <code>npm</code> 软件包进行分发，同时避免产生无法分发至 <code>npm</code> 的 <code>.ngfactory.js</code> 和 <code>.ngstyle.js</code> 文件。</p><p translation-origin="off">Can be used to instruct the template compiler to produce <code>.metadata.json</code> files for distribution with an <code>npm</code> package while avoiding the production of <code>.ngfactory.js</code> and <code>.ngstyle.js</code> files that cannot be distributed to <code>npm</code>.</p><p translation-result="on">对于使用 CLI 生成的库项目，dev 配置默认为 <code>true</code>。</p><p translation-origin="off">For library projects generated with the CLI, the dev configuration default is <code>true</code>.</p><h3 id="strictmetadataemit"><code>strictMetadataEmit</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#strictmetadataemit"><i class="material-icons">link</i></a></h3><p translation-result="on">为 <code>true</code> 时，如果 <code>"skipMetadataEmit"</code> 为 <code>false</code> 则向 <code>.metadata.json</code> 文件中报告错误。默认值为 <code>false</code>。只在 <code>"skipMetadataEmit"</code> 为 <code>false</code> 且 <code>"skipTemplateCodeGen"</code> 为 <code>true</code> 时使用。</p><p translation-origin="off">When <code>true</code>, reports an error to the <code>.metadata.json</code> file if <code>"skipMetadataEmit"</code> is <code>false</code>. Default is <code>false</code>. Use only when <code>"skipMetadataEmit"</code> is <code>false</code> and <code>"skipTemplateCodeGen"</code> is <code>true</code>.</p><p translation-result="on">该选项是为了验证为生成 <code>npm</code> 包而产生的 <code>.metadata.json</code> 文件。这种验证是严格的，并且会报告元数据中的错误，以免当模板编译器使用它时再出错。你可以通过在某个导出符号的注释文档中使用 <code>@dynamic</code> 注释来暂时防止（suppress）该选项报告错误。</p><p translation-origin="off">This option is intended to validate the <code>.metadata.json</code> files emitted for bundling with an <code>npm</code> package. The validation is strict and can emit errors for metadata that would never produce an error when used by the template compiler. You can choose to suppress the error emitted by this option for an exported symbol by including <code>@dynamic</code> in the comment documenting the symbol.</p><p translation-result="on"><code>.metadata.json</code> 文件即使包含错误也是有效的。如果这些元数据用来确定注解的内容，则模板编译器会报告这些错误。元数据收集器无法预测哪些符号是为了在注解中使用而设计，因此它会先在元数据中为导出的符号中包含错误节点。然后，如果使用了这些符号，则模板编译器可以使用这些错误节点来报告错误。</p><p translation-origin="off">It is valid for <code>.metadata.json</code> files to contain errors. The template compiler reports these errors if the metadata is used to determine the contents of an annotation. The metadata collector cannot predict the symbols that are designed for use in an annotation, so it preemptively includes error nodes in the metadata for the exported symbols. The template compiler can then use the error nodes to report an error if these symbols are used.</p><p translation-result="on">如果库的客户代码打算在注解中使用某个符号，则模板编译器通常不会在客户方用到该符号之前就报错。此选项允许你在库的构建阶段就检测到这些错误，例如用于生成 Angular 库本身时。</p><p translation-origin="off">If the client of a library intends to use a symbol in an annotation, the template compiler does not normally report this until the client uses the symbol. This option allows detection of these errors during the build phase of the library and is used, for example, in producing Angular libraries themselves.</p><p translation-result="on">对于使用 CLI 生成的库项目，dev 配置中默认为 <code>true</code> 。</p><p translation-origin="off">For library projects generated with the CLI, the dev configuration default is <code>true</code>.</p><h3 id="strictinjectionparameters"><code>strictInjectionParameters</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#strictinjectionparameters"><i class="material-icons">link</i></a></h3><p translation-result="on">如果为 <code>true</code>（推荐），则报告所提供的参数的错误，无法确定该参数的注入类型。如果为 <code>false</code>（当前为默认值），则标记为 <code>@<a href="api/core/Injectable" class="code-anchor">Injectable</a></code> 但其类型无法解析的类的构造函数参数会产生警告。</p><p translation-origin="off">When <code>true</code> (recommended), reports an error for a supplied parameter whose injection type cannot be determined. When <code>false</code> (currently the default), constructor parameters of classes marked with <code>@<a href="api/core/Injectable" class="code-anchor">Injectable</a></code> whose type cannot be resolved produce a warning.</p><p translation-result="on">当您使用 CLI 命令 <code>ng new</code> 时，默认生成的项目配置中将其设置为 <code>true</code>。</p><p translation-origin="off">When you use the CLI command <code>ng new</code>, it is set to <code>true</code> by default in the generated project's configuration.</p><h3 id="stricttemplates"><code>strictTemplates</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#stricttemplates"><i class="material-icons">link</i></a></h3><p translation-result="on">如果为 <code>true</code>，则在 Angular 9 中启用<a href="guide/template-typecheck#strict-mode">严格的模板类型检查</a>。仅当使用 <a href="guide/ivy">Ivy</a> 时，才能使用严格模式。</p><p translation-origin="off">When <code>true</code>, enables <a href="guide/template-typecheck#strict-mode">strict template type checking</a> in Angular version 9. Strict mode is only available when using <a href="guide/ivy">Ivy</a>.</p><p translation-result="on">其他严格性标志允许您启用和禁用特定类型的严格模板类型检查。请参阅<a href="guide/template-typecheck#troubleshooting-template-errors">排除模板错误</a> 。</p><p translation-origin="off">Additional strictness flags allow you to enable and disable specific types of strict template type checking. See <a href="guide/template-typecheck#troubleshooting-template-errors">troubleshooting template errors</a>.</p><h3 id="trace"><code>trace</code><a title="Link to this heading" class="header-link" aria-hidden="true" href="guide/angular-compiler-options#trace"><i class="material-icons">link</i></a></h3><p translation-result="on">如果为<code>true</code> ，则在编译模板时输出额外的信息。默认值为 <code>false</code>。</p><p translation-origin="off">When <code>true</code>, prints extra information while compiling templates. Default is <code>false</code>.</p></div></div></aio-doc-viewer></main></mat-sidenav-content></mat-sidenav-container><div class="toc-container no-print ng-star-inserted"><aio-lazy-ce selector="aio-toc"><aio-toc ng-version="9.0.0-rc.11"><div class="toc-inner no-print collapsed ng-star-inserted"><ul class="toc-list"><li class="h1 ng-star-inserted active" title="Angular 编译器选项"><a href="guide/angular-compiler-options#angular-compiler-options">Angular 编译器选项</a></li><li class="h2 ng-star-inserted" title="用 extends 语法配置继承方式"><a href="guide/angular-compiler-options#configuration-inheritance-with-extends">用 <code>extends</code> 语法配置继承方式</a></li><li class="h2 ng-star-inserted" title="模板选项"><a href="guide/angular-compiler-options#template-options">模板选项</a></li><li class="h3 ng-star-inserted" title="allowEmptyCodegenFiles"><a href="guide/angular-compiler-options#allowemptycodegenfiles"><code>allowEmptyCodegenFiles</code></a></li><li class="h3 ng-star-inserted" title="annotationsAs"><a href="guide/angular-compiler-options#annotationsas"><code>annotationsAs</code></a></li><li class="h3 ng-star-inserted" title="annotateForClosureCompiler"><a href="guide/angular-compiler-options#annotateforclosurecompiler"><code>annotateForClosureCompiler</code></a></li><li class="h3 ng-star-inserted" title="disableExpressionLowering"><a href="guide/angular-compiler-options#disableexpressionlowering"><code>disableExpressionLowering</code></a></li><li class="h3 ng-star-inserted" title="disableTypeScriptVersionCheck"><a href="guide/angular-compiler-options#disabletypescriptversioncheck"><code>disableTypeScriptVersionCheck</code></a></li><li class="h3 ng-star-inserted" title="enableIvy"><a href="guide/angular-compiler-options#enableivy"><code>enableIvy</code></a></li><li class="h3 ng-star-inserted" title="enableResourceInlining"><a href="guide/angular-compiler-options#enableresourceinlining"><code>enableResourceInlining</code></a></li><li class="h3 ng-star-inserted" title="enableLegacyTemplate"><a href="guide/angular-compiler-options#enablelegacytemplate"><code>enableLegacyTemplate</code></a></li><li class="h3 ng-star-inserted" title="flatModuleId"><a href="guide/angular-compiler-options#flatmoduleid"><code>flatModuleId</code></a></li><li class="h3 ng-star-inserted" title="flatModuleOutFile"><a href="guide/angular-compiler-options#flatmoduleoutfile"><code>flatModuleOutFile</code></a></li><li class="h3 ng-star-inserted" title="fullTemplateTypeCheck"><a href="guide/angular-compiler-options#fulltemplatetypecheck"><code>fullTemplateTypeCheck</code></a></li><li class="h3 ng-star-inserted" title="generateCodeForLibraries"><a href="guide/angular-compiler-options#generatecodeforlibraries"><code>generateCodeForLibraries</code></a></li><li class="h3 ng-star-inserted" title="preserveWhitespaces"><a href="guide/angular-compiler-options#preservewhitespaces"><code>preserveWhitespaces</code></a></li><li class="h3 ng-star-inserted" title="skipMetadataEmit"><a href="guide/angular-compiler-options#skipmetadataemit"><code>skipMetadataEmit</code></a></li><li class="h3 ng-star-inserted" title="skipTemplateCodegen"><a href="guide/angular-compiler-options#skiptemplatecodegen"><code>skipTemplateCodegen</code></a></li><li class="h3 ng-star-inserted" title="strictMetadataEmit"><a href="guide/angular-compiler-options#strictmetadataemit"><code>strictMetadataEmit</code></a></li><li class="h3 ng-star-inserted" title="strictInjectionParameters"><a href="guide/angular-compiler-options#strictinjectionparameters"><code>strictInjectionParameters</code></a></li><li class="h3 ng-star-inserted" title="strictTemplates"><a href="guide/angular-compiler-options#stricttemplates"><code>strictTemplates</code></a></li><li class="h3 ng-star-inserted" title="trace"><a href="guide/angular-compiler-options#trace"><code>trace</code></a></li></ul></div></aio-toc></aio-lazy-ce></div><footer class="no-print"><aio-footer><div class="grid-fluid"><div class="footer-block ng-star-inserted"><h3>资源</h3><ul><li class="ng-star-inserted"><a class="link" href="about" title="Angular 贡献者。">关于</a></li><li class="ng-star-inserted"><a class="link" href="resources" title="网络上的 Angular 工具、培训、博客等">资源列表</a></li><li class="ng-star-inserted"><a class="link" href="presskit" title="我们的联系方式、LOGO 和品牌">宣传资料</a></li><li class="ng-star-inserted"><a class="link" href="https://blog.angular.io/" title="Angular 官方博客">博客</a></li><li class="ng-star-inserted"><a class="link" href="analytics" title="Angular 使用情况分析">使用情况分析</a></li></ul></div><div class="footer-block ng-star-inserted"><h3>帮助</h3><ul><li class="ng-star-inserted"><a class="link" href="https://stackoverflow.com/questions/tagged/angular" title="Stack Overflow: 这里的社区会回答你关于 Angular 的技术问题">Stack Overflow</a></li><li class="ng-star-inserted"><a class="link" href="https://gitter.im/angular/angular" title="和老鸟聊 Angular">Gitter</a></li><li class="ng-star-inserted"><a class="link" href="https://github.com/angular/angular/issues" title="在 github 上报告问题和建议。">报告问题</a></li><li class="ng-star-inserted"><a class="link" href="https://github.com/angular/code-of-conduct/blob/master/CODE_OF_CONDUCT.md" title="让我们彼此尊重">行为规范</a></li></ul></div><div class="footer-block ng-star-inserted"><h3>社区</h3><ul><li class="ng-star-inserted"><a class="link" href="events" title="Angular events around the world.">活动</a></li><li class="ng-star-inserted"><a class="link" href="http://www.meetup.com/topics/angularjs/" title="参加聚会，向别的开发人员学习">聚会</a></li><li class="ng-star-inserted"><a class="link" href="https://twitter.com/angular" title="Twitter">Twitter</a></li><li class="ng-star-inserted"><a class="link" href="https://github.com/angular/angular" title="GitHub">GitHub</a></li><li class="ng-star-inserted"><a class="link" href="contribute" title="向 Angular 做贡献">做贡献</a></li></ul></div><div class="footer-block ng-star-inserted"><h3>多语言</h3><ul><li class="ng-star-inserted"><a class="link" href="https://angular.io/" title="English Version.">English Version</a></li><li class="ng-star-inserted"><a class="link" href="https://angular.tw/" title="正體中文版">正體中文版</a></li><li class="ng-star-inserted"><a class="link" href="https://angular.jp/" title="日本語版">日本語版</a></li><li class="ng-star-inserted"><a class="link" href="https://angular.kr/" title="한국어">한국어</a></li></ul></div></div><p>Super-powered by Google ©2010-2020. 代码授权方式：<a href="license" title="License text">MIT-style License</a>. 文档授权方式：<a href="http://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a>.</p><p>当前版本：9.0.1-build.79+sha.55f1ef01.</p></aio-footer></footer><div class="cdk-visually-hidden ng-star-inserted"><mat-icon role="img" class="mat-icon notranslate material-icons mat-icon-no-color" aria-hidden="true">&nbsp;</mat-icon></div></aio-shell><noscript><div class="background-sky hero"></div><section id="intro" style="text-shadow:1px 1px #1976d2"><div class="hero-logo"><img src="assets/images/logos/angular/angular.svg" width="250" height="250" alt="Angular"></div><div class="homepage-container"><div class="hero-headline">一套框架，多种平台<br>移动 &amp; 桌面</div></div></section><h2 style="color:red;margin-top:40px;position:relative;text-align:center;text-shadow:1px 1px #fafafa"><b><i>该网站需要浏览器支持 JavaScript</i></b></h2></noscript><script src="runtime-es2015.ee607cf78010348c8334.js" type="module"></script><script src="runtime-es5.ee607cf78010348c8334.js" nomodule="" defer=""></script><script src="polyfills-es5.1494ca908613f3429457.js" nomodule="" defer=""></script><script src="polyfills-es2015.9057a05c650bf60ecbf4.js" type="module"></script><script src="main-es2015.9cd62e243bd182514a19.js" type="module"></script><script src="main-es5.9cd62e243bd182514a19.js" nomodule="" defer=""></script><div class="cdk-live-announcer-element cdk-visually-hidden" aria-atomic="true" aria-live="polite"></div></body></html>